Simply from bag type, we named them into 5 types, flat bag, stand up bag, side gusset bag, eight side seal bag also called flat bottom bag and film roll. Normally flat bag is suitable for small capacity, while stand up bag is the most popular and mostly used type. Side gusset bag is suitable for some coffee and beans bag, while eight side seal bag is suitable for some big capacity bag, such us dog food bag, cat litter bag, etc, also some coffee bag and others still choose eight side seal bag, to show the high quality of their products inside. At last, film roll is suitable for filling machine. All bags are film rolls before cutting, when they are cut into separate bags, you will receive separate bags and fill them one by one, while if for film rolls, you will put the whole rolls on a filling machine, cutting and filling will be finished together by machine, which will save a lot of time and labor cost.

You may say there are also a lot of other bags except what i listed, but all the other bags are based on these. Like spout bags, it can be flat or stand up, you just need to add the spout, and shaped bag, its also in a square bag before, then you just cut extra material in the mould to make them like you see. Besides, zipper, euro hole, hang hole, tear notch, window, those are just details of the bags, can be added to either of them.